Hi all,
I am putting the Hercus Model A back together and have just finished putting the headstock back together. I am using the South Bend rebuild manual.
I used the threaded rod setup to remove and put the spindle back in.
The manual says to push the spindle back in until the shoulder meets the headstock. I think what I thought was the shoulder in the pictures was actual the protection ring (from http://ift.tt/1PbgIHq - page 5&6)
I tightened up the nuts on the threaded rod to push the spindle in properly, and it felt like I was putting a lot of pressure on the whole thing. I wasn't sure I should try to push it in further. See photos for where it ended up.
I think something is wrong though as if I tighten the capscrews more than 1/4 turn past hand tight, I can feel the spindle binding and when the lathe is running, I can hear the motor load up. When I started it, a lot of oil was being spun off. I think it was coming out between the edge of the front bearing and the bull gear.
I can see the oil leaking slight from the gaps at the front of the main bearings. Before I pulled it apart the capscrews were tight, but that may have been due to the paint. Paint may have also been sealing the gaps at the front.
When adjusting the take up nut, I found that it it was too loose, I could hit either side of the spindle with my hands and see it move back and forwards. I tightened the take up nut until this movement disappeared, then backed of a bee's tit.
Do I need to push the spindle in more? Will driving it too far in damage the thrust bearing?
It is also possible that the bearings were leaking like this before hand as this is the first time I have run it without the guard over the bull gear.
IMG_20151217_234135.jpgIMG_20151217_234131.jpgIMG_20151217_234123.jpg
Attached Images
Read the full thread at metalworkforums.com...
I am putting the Hercus Model A back together and have just finished putting the headstock back together. I am using the South Bend rebuild manual.
I used the threaded rod setup to remove and put the spindle back in.
The manual says to push the spindle back in until the shoulder meets the headstock. I think what I thought was the shoulder in the pictures was actual the protection ring (from http://ift.tt/1PbgIHq - page 5&6)
I tightened up the nuts on the threaded rod to push the spindle in properly, and it felt like I was putting a lot of pressure on the whole thing. I wasn't sure I should try to push it in further. See photos for where it ended up.
I think something is wrong though as if I tighten the capscrews more than 1/4 turn past hand tight, I can feel the spindle binding and when the lathe is running, I can hear the motor load up. When I started it, a lot of oil was being spun off. I think it was coming out between the edge of the front bearing and the bull gear.
I can see the oil leaking slight from the gaps at the front of the main bearings. Before I pulled it apart the capscrews were tight, but that may have been due to the paint. Paint may have also been sealing the gaps at the front.
When adjusting the take up nut, I found that it it was too loose, I could hit either side of the spindle with my hands and see it move back and forwards. I tightened the take up nut until this movement disappeared, then backed of a bee's tit.
Do I need to push the spindle in more? Will driving it too far in damage the thrust bearing?
It is also possible that the bearings were leaking like this before hand as this is the first time I have run it without the guard over the bull gear.
IMG_20151217_234135.jpgIMG_20151217_234131.jpgIMG_20151217_234123.jpg
Attached Images
IMG_20151217_234135.jpg (153.4 KB)
Read the full thread at metalworkforums.com...
rebuilt headstock, spindle question and oil flying everywhere
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